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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0411 multiple vulnerabilities fixed in freerdp 11 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: freerdp Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-8789 CVE-2018-8788 CVE-2018-8787 CVE-2018-8786 Reference: ESB-2019.0175 ESB-2018.3856 Original Bulletin: https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html - --------------------------BEGIN INCLUDED TEXT-------------------- Package : freerdp Version : 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 CVE ID : CVE-2018-8786 CVE-2018-8787 CVE-2018-8788 CVE-2018-8789 Debian Bug : For the FreeRDP version in Debian jessie LTS a security and functionality update has recently been provided. FreeRDP is a free re-implementation of the Microsoft RDP protocol (server and client side) with freerdp-x11 being the most common RDP client these days. Functional improvements: With help from FreeRDP upstream (cudos to Bernhard Miklautz and Martin Fleisz) we are happy to announce that RDP proto v6 and CredSSP v3 support have been backported to the old FreeRDP 1.1 branch. Since Q2/2018, Microsoft Windows servers and clients received an update that defaulted their RDP server to proto version 6. Since this change, people have not been able anymore to connect to recently updated MS Windows machines using old the FreeRDP 1.1 branch as found in Debian jessie LTS and Debian stretch. With the recent FreeRDP upload to Debian jessie LTS, connecting to up-to-date MS Windows machines is now again possible. Security issues: CVE-2018-8786 FreeRDP contained an integer truncation that lead to a heap-based buffer overflow in function update_read_bitmap_update() and resulted in a memory corruption and probably even a remote code execution. CVE-2018-8787 FreeRDP contained an integer overflow that leads to a heap-based buffer overflow in function gdi_Bitmap_Decompress() and resulted in a memory corruption and probably even a remote code execution. CVE-2018-8788 FreeRDP contained an out-of-bounds write of up to 4 bytes in function nsc_rle_decode() that resulted in a memory corruption and possibly even a remote code execution. CVE-2018-8789 FreeRDP contained several out-of-bounds reads in the NTLM authentication module that resulted in a denial of service (segfault). For Debian 8 "Jessie", these security problems have been fixed in version 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3. We recommend that you upgrade your freerdp packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXGDFe2aOgq3Tt24GAQihbQ/9H2Zau1gBl8qXy6Vu7IgYONBg+22XjXAQ 7VBbZM0oTjkjIZ5jYrCKbDg2stWQJ9Rb7nKla6ZYIJvDIY1zRVaoMalKXFIG5zH4 rHS/N2KMtm3gn94X2cnqD0Sem/QoUV+UZ8O3f71EKbiIrkL0OLOjPYFZx/P/ZVWF fOGJqLSi2dTO9dqNwY1j1OGMKn+5kFBT7oHcMa7SLoDQU+pbU9ZF81oxmdIKCwUz gDBWeyWsI3imweeGsVzdxxxTu35yJLO7u/JYsrPdNKBzfhiYs1T/rhtQfi6S6rQj zvA4CMzlT9bMGCDpf2a8XQ2eQfMU7MJPJyGuP57s8wBDSqBUL1OKFhMpHzPeSye1 U+6s8JzziRK0epy8KHweyYd5Fk2i4xNZg+j/I+hmT/pYlbnqp1hjiOwUAQDueHWN dNOUFfpKoRgPKyBCBMwWx73Qg6mDOINqsCDdUNeBu1tcIwlV+aQypFKFyNmreMRo m2x90vFfFx4VYfF+/ZTqaOxSplMzJbccU4SvbjVeQoj+A3rOUadI3m047o1J7DLJ hykHuvOh7u59Wkofmq+H//uKKHUirHnemGPfNYblq9Q+jTqnjbqR234/NMnkn3Xu JbDrHfPLZ++2ug4DCwG0CdjbYn5IVpYRVJCyB25WlBh1raBfGA2BWOiGmUPMOBsQ 1Hq1pSf3ucA= =u+Bs -----END PGP SIGNATURE-----